{"appState":{"pageLoadApiCallsStatus":true},"articleState":{"article":{"headers":{"creationTime":"2016-03-26T17:17:15+00:00","modifiedTime":"2019-09-05T20:42:17+00:00","timestamp":"2022-09-14T18:17:17+00:00"},"data":{"breadcrumbs":[{"name":"Academics & The Arts","_links":{"self":"https://dummies-api.dummies.com/v2/categories/33662"},"slug":"academics-the-arts","categoryId":33662},{"name":"Study Skills & Test Prep","_links":{"self":"https://dummies-api.dummies.com/v2/categories/33772"},"slug":"study-skills-test-prep","categoryId":33772},{"name":"CompTIA A+","_links":{"self":"https://dummies-api.dummies.com/v2/categories/33773"},"slug":"comptia-aplus","categoryId":33773}],"title":"RAID Types for the A+ Certification Exams","strippedTitle":"raid types for the a+ certification exams","slug":"raid-types-for-the-a-certification-exams","canonicalUrl":"","seo":{"metaDescription":"You will need to know types of RAID for the A+ Certification Exam. RAID (Redundant Array of Inexpensive Disks) is a method of implementing redundancy (duplicate","noIndex":0,"noFollow":0},"content":"You will need to know types of RAID for the A+ Certification Exam. <em>RAID</em> (Redundant Array of Inexpensive Disks) is a method of implementing redundancy (duplicated information) on your hard drives — if one disk fails, the other disk(s) can provide the missing information. There are many different levels of RAID, but the following are the only RAID levels pertinent to the A+ Exam:\r\n<ul class=\"level-one\">\r\n \t<li>\r\n<p class=\"first-para\"><strong>RAID 0:</strong> Disk striping (striped volume). With RAID level 0, the data is split across drives with no data redundancy. RAID level 0 improves read and write performance by writing to multiple drives at the same time. You need a minimum of two drives.</p>\r\n</li>\r\n \t<li>\r\n<p class=\"first-para\"><strong>RAID 1:</strong> Disk mirroring/duplexing (mirrored volume). With disk mirroring, the data is written to both drives involved in the mirror in order to provide data redundancy. Windows 7 supports disk mirroring.</p>\r\n</li>\r\n \t<li>\r\n<p class=\"first-para\"><strong>RAID 5:</strong> Disk striping with parity (RAID 5 volume). With RAID 5 volumes, the data is written to multiple drives along with parity information that is used to help recover data if a single drive fails. RAID 5 volumes need a minimum of three disks.</p>\r\n</li>\r\n \t<li>\r\n<p class=\"first-para\"><strong>RAID 10:</strong> Mirrored disk striping. RAID level 10 is also known as RAID 1+0 because it is a disk striping while mirroring the data written in the stripe.</p>\r\n</li>\r\n</ul>","description":"You will need to know types of RAID for the A+ Certification Exam. <em>RAID</em> (Redundant Array of Inexpensive Disks) is a method of implementing redundancy (duplicated information) on your hard drives — if one disk fails, the other disk(s) can provide the missing information. There are many different levels of RAID, but the following are the only RAID levels pertinent to the A+ Exam:\r\n<ul class=\"level-one\">\r\n \t<li>\r\n<p class=\"first-para\"><strong>RAID 0:</strong> Disk striping (striped volume). With RAID level 0, the data is split across drives with no data redundancy. RAID level 0 improves read and write performance by writing to multiple drives at the same time. You need a minimum of two drives.</p>\r\n</li>\r\n \t<li>\r\n<p class=\"first-para\"><strong>RAID 1:</strong> Disk mirroring/duplexing (mirrored volume). With disk mirroring, the data is written to both drives involved in the mirror in order to provide data redundancy. Windows 7 supports disk mirroring.</p>\r\n</li>\r\n \t<li>\r\n<p class=\"first-para\"><strong>RAID 5:</strong> Disk striping with parity (RAID 5 volume). With RAID 5 volumes, the data is written to multiple drives along with parity information that is used to help recover data if a single drive fails. RAID 5 volumes need a minimum of three disks.</p>\r\n</li>\r\n \t<li>\r\n<p class=\"first-para\"><strong>RAID 10:</strong> Mirrored disk striping. RAID level 10 is also known as RAID 1+0 because it is a disk striping while mirroring the data written in the stripe.</p>\r\n</li>\r\n</ul>","blurb":"","authors":[{"authorId":9195,"name":"Glen E. Clarke","slug":"glen-e-clarke","description":" <p><b>Glen E. Clarke, A+, Network+, Security+,</b> is an independent trainer and consultant. <b>Ed Tetz, A+, MCSE, MCT,</b> has written several guides to MCSE and other certifications. <b>Timothy Warner, MCSE, MCT, A+,</b> is an IT professional, technical trainer, and author. ","hasArticle":false,"_links":{"self":"https://dummies-api.dummies.com/v2/authors/9195"}},{"authorId":9897,"name":"Edward Tetz","slug":"edward-tetz","description":" <p><b>Glen E. Clarke, A+, Network+, Security+,</b> is an independent trainer and consultant. <b>Ed Tetz, A+, MCSE, MCT,</b> has written several guides to MCSE and other certifications. <b>Timothy Warner, MCSE, MCT, A+,</b> is an IT professional, technical trainer, and author. ","hasArticle":false,"_links":{"self":"https://dummies-api.dummies.com/v2/authors/9897"}},{"authorId":10892,"name":"Timothy L. Warner","slug":"timothy-warner","description":"Timothy L. Warner, MCSE, MCT, A+, is an IT professional, technical trainer, and author.","hasArticle":false,"_links":{"self":"https://dummies-api.dummies.com/v2/authors/10892"}}],"primaryCategoryTaxonomy":{"categoryId":33773,"title":"CompTIA A+","slug":"comptia-aplus","_links":{"self":"https://dummies-api.dummies.com/v2/categories/33773"}},"secondaryCategoryTaxonomy":{"categoryId":0,"title":null,"slug":null,"_links":null},"tertiaryCategoryTaxonomy":{"categoryId":0,"title":null,"slug":null,"_links":null},"trendingArticles":[{"articleId":175788,"title":"Trig Identities for Pre-Calculus","slug":"trig-identities-for-pre-calculus","categoryList":["academics-the-arts","math","pre-calculus"],"_links":{"self":"/articles/175788"}},{"articleId":147241,"title":"How to Use the Z-Table","slug":"how-to-use-the-z-table","categoryList":["academics-the-arts","math","statistics"],"_links":{"self":"/articles/147241"}},{"articleId":192609,"title":"How to Pray the Rosary: A Comprehensive Guide","slug":"how-to-pray-the-rosary","categoryList":["body-mind-spirit","religion-spirituality","christianity","catholicism"],"_links":{"self":"/articles/192609"}},{"articleId":232914,"title":"The Flop, Turn, and River Cards in Texas Hold'em","slug":"flop-turn-river-cards-texas-holdem","categoryList":["home-auto-hobbies","games","card-games","poker"],"_links":{"self":"/articles/232914"}},{"articleId":193770,"title":"How to Play Rummy: All You Need to Know","slug":"rummy-understanding-the-rules-and-starting-a-game","categoryList":["home-auto-hobbies","games","card-games","general-card-games"],"_links":{"self":"/articles/193770"}}],"inThisArticle":[],"relatedArticles":{"fromBook":[{"articleId":266317,"title":"CompTIA Certification A+ Exams: Installing, Removing, and Repairing Applications","slug":"comptia-certification-a-exams-installing-removing-and-repairing-applications","categoryList":["academics-the-arts","study-skills-test-prep","comptia-aplus"],"_links":{"self":"https://dummies-api.dummies.com/v2/articles/266317"}},{"articleId":266308,"title":"Printer Troubleshooting Knowledge for the A+ Exams","slug":"printer-troubleshooting-knowledge-for-the-a-exams","categoryList":["academics-the-arts","study-skills-test-prep","comptia-aplus"],"_links":{"self":"https://dummies-api.dummies.com/v2/articles/266308"}},{"articleId":266303,"title":"Printer Connections You Need to Know for the A+ Exams","slug":"printer-connections-you-need-to-know-for-the-a-exams","categoryList":["academics-the-arts","study-skills-test-prep","comptia-aplus"],"_links":{"self":"https://dummies-api.dummies.com/v2/articles/266303"}},{"articleId":266295,"title":"Types of Printers—What You Need to Know for the CompTIA A+ Exams","slug":"types-of-printers-what-you-need-to-know-for-the-comptia-a-exams","categoryList":["academics-the-arts","study-skills-test-prep","comptia-aplus"],"_links":{"self":"https://dummies-api.dummies.com/v2/articles/266295"}},{"articleId":266119,"title":"The 2019 CompTIA A+ Exams","slug":"the-2019-comptia-a-exams","categoryList":["academics-the-arts","study-skills-test-prep","comptia-aplus"],"_links":{"self":"https://dummies-api.dummies.com/v2/articles/266119"}}],"fromCategory":[{"articleId":266317,"title":"CompTIA Certification A+ Exams: Installing, Removing, and Repairing Applications","slug":"comptia-certification-a-exams-installing-removing-and-repairing-applications","categoryList":["academics-the-arts","study-skills-test-prep","comptia-aplus"],"_links":{"self":"https://dummies-api.dummies.com/v2/articles/266317"}},{"articleId":266308,"title":"Printer Troubleshooting Knowledge for the A+ Exams","slug":"printer-troubleshooting-knowledge-for-the-a-exams","categoryList":["academics-the-arts","study-skills-test-prep","comptia-aplus"],"_links":{"self":"https://dummies-api.dummies.com/v2/articles/266308"}},{"articleId":266303,"title":"Printer Connections You Need to Know for the A+ Exams","slug":"printer-connections-you-need-to-know-for-the-a-exams","categoryList":["academics-the-arts","study-skills-test-prep","comptia-aplus"],"_links":{"self":"https://dummies-api.dummies.com/v2/articles/266303"}},{"articleId":266295,"title":"Types of Printers—What You Need to Know for the CompTIA A+ Exams","slug":"types-of-printers-what-you-need-to-know-for-the-comptia-a-exams","categoryList":["academics-the-arts","study-skills-test-prep","comptia-aplus"],"_links":{"self":"https://dummies-api.dummies.com/v2/articles/266295"}},{"articleId":266119,"title":"The 2019 CompTIA A+ Exams","slug":"the-2019-comptia-a-exams","categoryList":["academics-the-arts","study-skills-test-prep","comptia-aplus"],"_links":{"self":"https://dummies-api.dummies.com/v2/articles/266119"}}]},"hasRelatedBookFromSearch":false,"relatedBook":{"bookId":281613,"slug":"comptia-a-certification-all-in-one-for-dummies-5th-edition","isbn":"9781119581062","categoryList":["academics-the-arts","study-skills-test-prep","comptia-aplus"],"amazon":{"default":"https://www.amazon.com/gp/product/1119581060/ref=as_li_tl?ie=UTF8&tag=wiley01-20","ca":"https://www.amazon.ca/gp/product/1119581060/ref=as_li_tl?ie=UTF8&tag=wiley01-20","indigo_ca":"http://www.tkqlhce.com/click-9208661-13710633?url=https://www.chapters.indigo.ca/en-ca/books/product/1119581060-item.html&cjsku=978111945484","gb":"https://www.amazon.co.uk/gp/product/1119581060/ref=as_li_tl?ie=UTF8&tag=wiley01-20","de":"https://www.amazon.de/gp/product/1119581060/ref=as_li_tl?ie=UTF8&tag=wiley01-20"},"image":{"src":"https://www.dummies.com/wp-content/uploads/comptia-a-plus-certification-all-in-one-for-dummies-5th-edition-cover-9781119581062-203x255.jpg","width":203,"height":255},"title":"CompTIA A+ Certification All-in-One For Dummies","testBankPinActivationLink":"https://testbanks.wiley.com","bookOutOfPrint":true,"authorsInfo":"<p><p><b>Glen E. Clarke, A+, Network+, Security+,</b> is an independent trainer and consultant. <b>Ed Tetz, A+, MCSE, MCT,</b> has written several guides to MCSE and other certifications. <b>Timothy Warner, MCSE, MCT, A+,</b> is an IT professional, technical trainer, and author. <p><b>Glen E. Clarke, A+, Network+, Security+,</b> is an independent trainer and consultant. <b>Ed Tetz, A+, MCSE, MCT,</b> has written several guides to MCSE and other certifications. <b>Timothy Warner, MCSE, MCT, A+,</b> is an IT professional, technical trainer, and author. <p><b><b data-author-id=\"9195\">Glen E. Clarke</b>, A+, Network+, Security+,</b> is an independent trainer and consultant. <b>Ed Tetz, A+, MCSE, MCT,</b> has written several guides to MCSE and other certifications. <b>Timothy Warner, MCSE, MCT, A+,</b> is an IT professional, technical trainer, and author.</p>","authors":[{"authorId":9897,"name":"Edward Tetz","slug":"edward-tetz","description":" <p><b>Glen E. Clarke, A+, Network+, Security+,</b> is an independent trainer and consultant. <b>Ed Tetz, A+, MCSE, MCT,</b> has written several guides to MCSE and other certifications. <b>Timothy Warner, MCSE, MCT, A+,</b> is an IT professional, technical trainer, and author. ","hasArticle":false,"_links":{"self":"https://dummies-api.dummies.com/v2/authors/9897"}},{"authorId":34882,"name":"Timothy L. Warner","slug":"timothy-l-warner","description":" <p><b>Glen E. Clarke, A+, Network+, Security+,</b> is an independent trainer and consultant. <b>Ed Tetz, A+, MCSE, MCT,</b> has written several guides to MCSE and other certifications. <b>Timothy Warner, MCSE, MCT, A+,</b> is an IT professional, technical trainer, and author. ","hasArticle":false,"_links":{"self":"https://dummies-api.dummies.com/v2/authors/34882"}},{"authorId":9195,"name":"Glen E. Clarke","slug":"glen-e-clarke","description":" <p><b>Glen E. Clarke, A+, Network+, Security+,</b> is an independent trainer and consultant. <b>Ed Tetz, A+, MCSE, MCT,</b> has written several guides to MCSE and other certifications. <b>Timothy Warner, MCSE, MCT, A+,</b> is an IT professional, technical trainer, and author. ","hasArticle":false,"_links":{"self":"https://dummies-api.dummies.com/v2/authors/9195"}}],"_links":{"self":"https://dummies-api.dummies.com/v2/books/"}},"collections":[],"articleAds":{"footerAd":"<div class=\"du-ad-region row\" id=\"article_page_adhesion_ad\"><div class=\"du-ad-unit col-md-12\" data-slot-id=\"article_page_adhesion_ad\" data-refreshed=\"false\" \r\n data-target = \"[{"key":"cat","values":["academics-the-arts","study-skills-test-prep","comptia-aplus"]},{"key":"isbn","values":["9781119581062"]}]\" id=\"du-slot-63221aad1951a\"></div></div>","rightAd":"<div class=\"du-ad-region row\" id=\"article_page_right_ad\"><div class=\"du-ad-unit col-md-12\" data-slot-id=\"article_page_right_ad\" data-refreshed=\"false\" \r\n data-target = \"[{"key":"cat","values":["academics-the-arts","study-skills-test-prep","comptia-aplus"]},{"key":"isbn","values":["9781119581062"]}]\" id=\"du-slot-63221aad19d98\"></div></div>"},"articleType":{"articleType":"Articles","articleList":null,"content":null,"videoInfo":{"videoId":null,"name":null,"accountId":null,"playerId":null,"thumbnailUrl":null,"description":null,"uploadDate":null}},"sponsorship":{"sponsorshipPage":false,"backgroundImage":{"src":null,"width":0,"height":0},"brandingLine":"","brandingLink":"","brandingLogo":{"src":null,"width":0,"height":0},"sponsorAd":"","sponsorEbookTitle":"","sponsorEbookLink":"","sponsorEbookImage":{"src":null,"width":0,"height":0}},"primaryLearningPath":"Advance","lifeExpectancy":null,"lifeExpectancySetFrom":null,"dummiesForKids":"no","sponsoredContent":"no","adInfo":"","adPairKey":[]},"status":"publish","visibility":"public","articleId":173704},"articleLoadedStatus":"success"},"listState":{"list":{},"objectTitle":"","status":"initial","pageType":null,"objectId":null,"page":1,"sortField":"time","sortOrder":1,"categoriesIds":[],"articleTypes":[],"filterData":{},"filterDataLoadedStatus":"initial","pageSize":10},"adsState":{"pageScripts":{"headers":{"timestamp":"2024-10-21T10:50:01+00:00"},"adsId":0,"data":{"scripts":[{"pages":["all"],"location":"header","script":"\r\n<script src=\"https://cdn.optimizely.com/js/10563184655.js\"></script>","enabled":false},{"pages":["all"],"location":"header","script":"\r\n<script>var _comscore = _comscore || [];_comscore.push({ c1: \"2\", c2: \"15097263\" });(function() {var s = document.createElement(\"script\"), el = document.getElementsByTagName(\"script\")[0]; s.async = true;s.src = (document.location.protocol == \"https:\" ? \"https://sb\" : \"http://b\") + \".scorecardresearch.com/beacon.js\";el.parentNode.insertBefore(s, el);})();</script><noscript><img src=\"https://sb.scorecardresearch.com/p?c1=2&c2=15097263&cv=2.0&cj=1\" /></noscript>\r\n","enabled":true},{"pages":["all"],"location":"footer","script":"\r\n<script type='text/javascript'>\r\n(function(){var g=function(e,h,f,g){\r\nthis.get=function(a){for(var a=a+\"=\",c=document.cookie.split(\";\"),b=0,e=c.length;b<e;b++){for(var d=c[b];\" \"==d.charAt(0);)d=d.substring(1,d.length);if(0==d.indexOf(a))return d.substring(a.length,d.length)}return null};\r\nthis.set=function(a,c){var b=\"\",b=new Date;b.setTime(b.getTime()+6048E5);b=\"; expires=\"+b.toGMTString();document.cookie=a+\"=\"+c+b+\"; path=/; \"};\r\nthis.check=function(){var a=this.get(f);if(a)a=a.split(\":\");else if(100!=e)\"v\"==h&&(e=Math.random()>=e/100?0:100),a=[h,e,0],this.set(f,a.join(\":\"));else return!0;var c=a[1];if(100==c)return!0;switch(a[0]){case \"v\":return!1;case \"r\":return c=a[2]%Math.floor(100/c),a[2]++,this.set(f,a.join(\":\")),!c}return!0};\r\nthis.go=function(){if(this.check()){var a=document.createElement(\"script\");a.type=\"text/javascript\";a.src=g;document.body&&document.body.appendChild(a)}};\r\nthis.start=function(){var t=this;\"complete\"!==document.readyState?window.addEventListener?window.addEventListener(\"load\",function(){t.go()},!1):window.attachEvent&&window.attachEvent(\"onload\",function(){t.go()}):t.go()};};\r\ntry{(new g(100,\"r\",\"QSI_S_ZN_5o5yqpvMVjgDOuN\",\"https://zn5o5yqpvmvjgdoun-wiley.siteintercept.qualtrics.com/SIE/?Q_ZID=ZN_5o5yqpvMVjgDOuN\")).start()}catch(i){}})();\r\n</script><div id='ZN_5o5yqpvMVjgDOuN'></div>\r\n","enabled":false},{"pages":["all"],"location":"header","script":"\r\n<script>\r\n (function(h,o,t,j,a,r){\r\n h.hj=h.hj||function(){(h.hj.q=h.hj.q||[]).push(arguments)};\r\n h._hjSettings={hjid:257151,hjsv:6};\r\n a=o.getElementsByTagName('head')[0];\r\n r=o.createElement('script');r.async=1;\r\n r.src=t+h._hjSettings.hjid+j+h._hjSettings.hjsv;\r\n a.appendChild(r);\r\n })(window,document,'https://static.hotjar.com/c/hotjar-','.js?sv=');\r\n</script>","enabled":false},{"pages":["article"],"location":"header","script":" <script src=\"//get.s-onetag.com/bffe21a1-6bb8-4928-9449-7beadb468dae/tag.min.js\" async defer></script>","enabled":true},{"pages":["homepage"],"location":"header","script":"<meta name=\"facebook-domain-verification\" content=\"irk8y0irxf718trg3uwwuexg6xpva0\" />","enabled":true},{"pages":["homepage","article","category","search"],"location":"footer","script":"\r\n<noscript>\r\n<img height=\"1\" width=\"1\" src=\"https://www.facebook.com/tr?id=256338321977984&ev=PageView&noscript=1\"/>\r\n</noscript>\r\n","enabled":true}]}},"pageScriptsLoadedStatus":"success"},"navigationState":{"navigationCollections":[{"collectionId":287568,"title":"BYOB (Be Your Own Boss)","hasSubCategories":false,"url":"/collection/for-the-entry-level-entrepreneur-287568"},{"collectionId":293237,"title":"Be a Rad Dad","hasSubCategories":false,"url":"/collection/be-the-best-dad-293237"},{"collectionId":295890,"title":"Career Shifting","hasSubCategories":false,"url":"/collection/career-shifting-295890"},{"collectionId":294090,"title":"Contemplating the Cosmos","hasSubCategories":false,"url":"/collection/theres-something-about-space-294090"},{"collectionId":287563,"title":"For Those Seeking Peace of Mind","hasSubCategories":false,"url":"/collection/for-those-seeking-peace-of-mind-287563"},{"collectionId":287570,"title":"For the Aspiring Aficionado","hasSubCategories":false,"url":"/collection/for-the-bougielicious-287570"},{"collectionId":291903,"title":"For the Budding Cannabis Enthusiast","hasSubCategories":false,"url":"/collection/for-the-budding-cannabis-enthusiast-291903"},{"collectionId":299891,"title":"For the College Bound","hasSubCategories":false,"url":"/collection/for-the-college-bound-299891"},{"collectionId":291934,"title":"For the Exam-Season Crammer","hasSubCategories":false,"url":"/collection/for-the-exam-season-crammer-291934"},{"collectionId":301547,"title":"For the Game Day Prepper","hasSubCategories":false,"url":"/collection/big-game-day-prep-made-easy-301547"}],"navigationCollectionsLoadedStatus":"success","navigationCategories":{"books":{"0":{"data":[{"categoryId":33512,"title":"Technology","hasSubCategories":true,"url":"/category/books/technology-33512"},{"categoryId":33662,"title":"Academics & The Arts","hasSubCategories":true,"url":"/category/books/academics-the-arts-33662"},{"categoryId":33809,"title":"Home, Auto, & Hobbies","hasSubCategories":true,"url":"/category/books/home-auto-hobbies-33809"},{"categoryId":34038,"title":"Body, Mind, & Spirit","hasSubCategories":true,"url":"/category/books/body-mind-spirit-34038"},{"categoryId":34224,"title":"Business, Careers, & Money","hasSubCategories":true,"url":"/category/books/business-careers-money-34224"}],"breadcrumbs":[],"categoryTitle":"Level 0 Category","mainCategoryUrl":"/category/books/level-0-category-0"}},"articles":{"0":{"data":[{"categoryId":33512,"title":"Technology","hasSubCategories":true,"url":"/category/articles/technology-33512"},{"categoryId":33662,"title":"Academics & The Arts","hasSubCategories":true,"url":"/category/articles/academics-the-arts-33662"},{"categoryId":33809,"title":"Home, Auto, & Hobbies","hasSubCategories":true,"url":"/category/articles/home-auto-hobbies-33809"},{"categoryId":34038,"title":"Body, Mind, & Spirit","hasSubCategories":true,"url":"/category/articles/body-mind-spirit-34038"},{"categoryId":34224,"title":"Business, Careers, & Money","hasSubCategories":true,"url":"/category/articles/business-careers-money-34224"}],"breadcrumbs":[],"categoryTitle":"Level 0 Category","mainCategoryUrl":"/category/articles/level-0-category-0"}}},"navigationCategoriesLoadedStatus":"success"},"searchState":{"searchList":[],"searchStatus":"initial","relatedArticlesList":[],"relatedArticlesStatus":"initial"},"routeState":{"name":"Article3","path":"/article/academics-the-arts/study-skills-test-prep/comptia-aplus/raid-types-for-the-a-certification-exams-173704/","hash":"","query":{},"params":{"category1":"academics-the-arts","category2":"study-skills-test-prep","category3":"comptia-aplus","article":"raid-types-for-the-a-certification-exams-173704"},"fullPath":"/article/academics-the-arts/study-skills-test-prep/comptia-aplus/raid-types-for-the-a-certification-exams-173704/","meta":{"routeType":"article","breadcrumbInfo":{"suffix":"Articles","baseRoute":"/category/articles"},"prerenderWithAsyncData":true},"from":{"name":null,"path":"/","hash":"","query":{},"params":{},"fullPath":"/","meta":{}}},"dropsState":{"submitEmailResponse":false,"status":"initial"},"profileState":{"auth":{},"userOptions":{},"status":"success"}}

RAID Types for the A+ Certification Exams

By: Glen E. Clarke and Edward Tetz and Timothy L. Warner and

Updated: 09-05-2019

From The Book: CompTIA A+ Certification All-in-One For Dummies

CompTIA A+ Certification All-in-One For Dummies

Book image

Explore Book Buy On Amazon

You will need to know types of RAID for the A+ Certification Exam. RAID (Redundant Array of Inexpensive Disks) is a method of implementing redundancy (duplicated information) on your hard drives — if one disk fails, the other disk(s) can provide the missing information. There are many different levels of RAID, but the following are the only RAID levels pertinent to the A+ Exam:

RAID 0: Disk striping (striped volume). With RAID level 0, the data is split across drives with no data redundancy. RAID level 0 improves read and write performance by writing to multiple drives at the same time. You need a minimum of two drives.
RAID 1: Disk mirroring/duplexing (mirrored volume). With disk mirroring, the data is written to both drives involved in the mirror in order to provide data redundancy. Windows 7 supports disk mirroring.
RAID 5: Disk striping with parity (RAID 5 volume). With RAID 5 volumes, the data is written to multiple drives along with parity information that is used to help recover data if a single drive fails. RAID 5 volumes need a minimum of three disks.
RAID 10: Mirrored disk striping. RAID level 10 is also known as RAID 1+0 because it is a disk striping while mirroring the data written in the stripe.

About This Article

This article is from the book:

CompTIA A+ Certification All-in-One For Dummies ,

About the book authors:

Glen E. Clarke, A+, Network+, Security+, is an independent trainer and consultant. Ed Tetz, A+, MCSE, MCT, has written several guides to MCSE and other certifications. Timothy Warner, MCSE, MCT, A+, is an IT professional, technical trainer, and author.

Glen E. Clarke, A+, Network+, Security+, is an independent trainer and consultant. Ed Tetz, A+, MCSE, MCT, has written several guides to MCSE and other certifications. Timothy Warner, MCSE, MCT, A+, is an IT professional, technical trainer, and author.

Glen E. Clarke, A+, Network+, Security+, is an independent trainer and consultant. Ed Tetz, A+, MCSE, MCT, has written several guides to MCSE and other certifications. Timothy Warner, MCSE, MCT, A+, is an IT professional, technical trainer, and author.

This article can be found in the category:

CompTIA A+ ,